u call them centimeters.
They are called millimeter lines.
To show 15 mm on a ruler, locate the millimeter markings, which are typically the smaller lines between the larger centimeter markings. Count 15 small lines from the 0 mark, as each small line represents 1 mm. The 15 mm mark will be exactly at the 15 mm line, which is also 1.5 cm on the ruler. Make sure to use a ruler that includes millimeter measurements for accurate representation.
Try using what they call a Horizontal Ruler: <hr> You can also indicate the width, <hr width="50%">
you read a ruler by conting the little lines first
you draw straight lines with a ruler
A 16-mark looks like a small vertical line that is slightly longer than the surrounding lines on a standard ruler. It typically falls between the 15-mark and the 17-mark on the ruler scale.
If the lines are on the opposite side of the inches on the ruler, then yes. You must keep in mind, however, that a ruler is used for inches and that the centimeters may not be marked.
DOODOO
Because he rules People "rule" lines - Wikipedia
The millimeters on a ruler are the tiny lines in between each centimeter
To create a simple drawing of a ruler, start by drawing a straight horizontal line. Divide this line into equal segments to represent inches or centimeters, depending on your preference. Add small perpendicular lines at each division to indicate the measurement units. Finally, label each segment with the corresponding measurement.
Ruler